出典:Wiktionary
出典:『Wiktionary』 (2026/02/07 18:14 UTC 版)
An alteration of Scots sculduddery, sculdudrie (“adultery, unchaste behaviour; obscenity, lewdness”), of long-uncertain origin (probably a euphemism). Relation to skull is speculative at best and likely folk etymology. The American spelling skullduggery is in keeping with terms such as skillful and willful.
skulduggery (countable and uncountable, plural skulduggeries)